Advanced Photothermal Spectroscopy for Trace PFAS Detection
The widespread industrial and consumer use of per- and polyfluoroalkyl substances (PFAS) has led to their persistent presence in the environment, driven by their robust carbon-fluorine bonds and bioaccumulative properties. This contamination poses serious health and ecological risks, making real-tim...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | ECS Sensors Plus |
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| Online Access: | https://doi.org/10.1149/2754-2726/ada4bc |
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| author | Yaoli Zhao N. K. Jannabhatla Thomas Thundat |
| author_facet | Yaoli Zhao N. K. Jannabhatla Thomas Thundat |
| author_sort | Yaoli Zhao |
| collection | DOAJ |
| description | The widespread industrial and consumer use of per- and polyfluoroalkyl substances (PFAS) has led to their persistent presence in the environment, driven by their robust carbon-fluorine bonds and bioaccumulative properties. This contamination poses serious health and ecological risks, making real-time, selective, and sensitive detection of PFAS critical for effective mitigation. We demonstrate a selective and sensitive detection of vapor-phase PFAS using photothermal cantilever deflection spectroscopy (PCDS), achieving a detection limit of ∼30 pg. This method eliminates the need for chemically selective coatings, relying instead on the physisorption of PFAS molecules onto a bi-material microcantilever. By leveraging mid-infrared absorption and monitoring both cantilever bending and resonance frequency, PCDS enables simultaneous chemical identification and mass quantification. The technique demonstrates high selectivity in the mid-infrared fingerprint region and rapid desorption of analytes, offering significant advantages for real-time environmental monitoring and public health protection. |
| format | Article |
| id | doaj-art-3501fb8c4a384ebc8a1bc06fc43ae15d |
| institution | Kabale University |
| issn | 2754-2726 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | ECS Sensors Plus |
| spelling | doaj-art-3501fb8c4a384ebc8a1bc06fc43ae15d2025-01-10T12:40:13ZengIOP PublishingECS Sensors Plus2754-27262025-01-014101340110.1149/2754-2726/ada4bcAdvanced Photothermal Spectroscopy for Trace PFAS DetectionYaoli Zhao0https://orcid.org/0000-0002-7179-1001N. K. Jannabhatla1Thomas Thundat2Chemical and Biological Engineering, University at Buffalo , Buffalo, New York 14260, United States of AmericaChemical and Biological Engineering, University at Buffalo , Buffalo, New York 14260, United States of AmericaChemical and Biological Engineering, University at Buffalo , Buffalo, New York 14260, United States of America; RENEW Institute, University at Buffalo , New York 14260, United States of AmericaThe widespread industrial and consumer use of per- and polyfluoroalkyl substances (PFAS) has led to their persistent presence in the environment, driven by their robust carbon-fluorine bonds and bioaccumulative properties. This contamination poses serious health and ecological risks, making real-time, selective, and sensitive detection of PFAS critical for effective mitigation. We demonstrate a selective and sensitive detection of vapor-phase PFAS using photothermal cantilever deflection spectroscopy (PCDS), achieving a detection limit of ∼30 pg. This method eliminates the need for chemically selective coatings, relying instead on the physisorption of PFAS molecules onto a bi-material microcantilever. By leveraging mid-infrared absorption and monitoring both cantilever bending and resonance frequency, PCDS enables simultaneous chemical identification and mass quantification. The technique demonstrates high selectivity in the mid-infrared fingerprint region and rapid desorption of analytes, offering significant advantages for real-time environmental monitoring and public health protection.https://doi.org/10.1149/2754-2726/ada4bcreceptor-free molecular recognitionphotothermal calorimetrymicrofabricated cantilever sensorsphotothermal infrared spectroscopy of PFASvapor phase sensing of PFAS |
| spellingShingle | Yaoli Zhao N. K. Jannabhatla Thomas Thundat Advanced Photothermal Spectroscopy for Trace PFAS Detection ECS Sensors Plus receptor-free molecular recognition photothermal calorimetry microfabricated cantilever sensors photothermal infrared spectroscopy of PFAS vapor phase sensing of PFAS |
| title | Advanced Photothermal Spectroscopy for Trace PFAS Detection |
| title_full | Advanced Photothermal Spectroscopy for Trace PFAS Detection |
| title_fullStr | Advanced Photothermal Spectroscopy for Trace PFAS Detection |
| title_full_unstemmed | Advanced Photothermal Spectroscopy for Trace PFAS Detection |
| title_short | Advanced Photothermal Spectroscopy for Trace PFAS Detection |
| title_sort | advanced photothermal spectroscopy for trace pfas detection |
| topic | receptor-free molecular recognition photothermal calorimetry microfabricated cantilever sensors photothermal infrared spectroscopy of PFAS vapor phase sensing of PFAS |
| url | https://doi.org/10.1149/2754-2726/ada4bc |
| work_keys_str_mv | AT yaolizhao advancedphotothermalspectroscopyfortracepfasdetection AT nkjannabhatla advancedphotothermalspectroscopyfortracepfasdetection AT thomasthundat advancedphotothermalspectroscopyfortracepfasdetection |